In 1980 and 1981 he was serving as a senior assistant commissioner in the management systems and efficiency division of the Public Service Board.[3][4]
He moved to the Department of Administrative Services in 1989.[7] His task was to have the department operate in accordance with commercial principles.[8] He also aimed to improve departmental services to customers.[9] He restructured 17 separate departmental units into four programs, and offered redundancy packages to downsize the department,[8] reducing staffing numbers by more than 1000.[10] The new structure Tanzer established saw much of the department run on commercial lines and funded on a trust-account basis.[11]
Tanzer retired from the public service in 1993, his final appointment was as Secretary of the Department of the Arts and Administrative Services.[12] As head of the Department, he was responsible for handling more than $2 billion in revenue.[13]
^Tanzer, Noel (1998). "Interview with Noel Tanzer, Secretary of the Dept. of Administrative Services and Head of the Inquiry into the Tendering for the Demolition of Royal Canberra Hospital" (Interview). Interviewed by John Farquharson.